mcdowell



(No Model.) 2 Sheets-Sheet 1. A. MCDOWELL.

COOLER No. 424,125. Patented-Mar. .25, 1890.

N4 PETERS. Phoiu-Llthngnphnr. Wzlhingtom n C.

2 Sheets-Sheet 2.

(No Model;)

A Mo D O W E L L COOLER.

No. 424,125. Patented Mar. 25, 1890.

N. PETERS. FhMo-Lllhognlphur, Winhingian. D. C.

U ITED STATES PATENT OFFICE.

ALBERT MCDOWVELL, OF SELMA, CALIFORNIA, ASSIGNOR OF ONE-HALF TO J. A.STROUD, OF SAME PLACE.

COOLER.

SPECIFICATION forming part of Letters Patent No. 424,125, dated March25, 1890.

Application filed July 8, 1889. Serial No. 316,865. (No model.)

To all whom it may concern: and which are passed around the outer vesselBe it known that I, ALBERT lVICDONVELL, of and in contact with thefabric cover 0. These Selma, Fresno county, State of California, rollshave extension-flaps d, which hang down have invented an Improvement inCoolers; into the space a.

and I hereby declare the following to be afull, E is an outer belt orband of suitable fabclear, and exact description of the same. ric-such,for example, as duck or canvas My invention relates to that class ofcoolers which is strapped and fastened around the in which theevaporation of the Water is made exterior of the outer vessel A andpresses to rapidly take place by exposing a consideragainst the rolls D.There is therefore formed 60 1o able surface of saturated fabric,whereby the between the outer vessel and the belt or strap temperaturewithin the cooling-vessel is low- E an air-space F, which is made by therolls ered. holding the strap or band out.

My invention consists in a suitable Vessel G is the roof for the outervessel, formed for the water, having within it a vessel for the withswinging sides g, which are provided 65 I 5 material which is to be keptcool, covers of with covers g of a suitable absorbent matefabric orother suitable absorbent material rialsuch as bagging or otherfabric-and fitted to the outside of the water-vessel and these covershave extension-flaps gi'which having end flaps falling over the edges ofsaid 'hang down in the space a. The extensionvessel into the water,rolls of absorbent maflaps d of the rolls pass over the tops of the 702o terial or fabric passed around the exterior of swinging sides g anddown into the space a the vessel and having extension-flapsprojectwithin the vessel A, and thus the rolls are in ing into thewater, an outer belt or band fitted contact with the fabric covers 9 ofsaid sides. around the vessel outside of the rolls, whereby H is afabric cover for the entire cooler, an air-space is formed between saidbelt or said cover being secured to theroof and hang- 75 band and thevessel, a suitable roof or top for ing down on each side of the cooler.

the vessel and absorbent coverings therefor, The operation of the cooleris as follows: and minor details of construction and ar- Water is placedin the outer vesselA, and rangement, all of which I shall hereinafterthe inner vessel Bis set down into the water, fully describe, togetherwith the objects of thelevel of which, however,is not high enough 80 myinvention. to allow it to run over into the inner vessel.

Referring to the accompanying drawings In this inner vessel is placedthe material to fora more complete explanation of my invenbe kept cool.The water fills the space a, and tion, Figure 1 is a verticalcross-section of my consequently the flaps c and d and g lie in cooler.Fig. 2 is a horizontal section on line the water in space a. The fabriccoveringO 8 5 w m, Fig. 1. of the vessel A is first saturated withwater,

A is the outer vessel, made of any suitable as are also the rolls D andthe fabric cover g material. B is the inner or receiving vessel of theroof, and the extension-flaps, passing for containing the materials tobe kept cool. down into the water, keep all these parts This innervessel is enough smallerthan the thoroughly saturated as long as thereis any 0 40 Outer one to leavea surrounding space a, and water left. Theevaporation from these said inner vessel is held down in place by anysaturated surfaces is great enough to reduce suitable 1neansas, forinstance, by the the temperature within the vesselB and serve flanges aand the pivoted or swinging arm (t the purpose intended.

The outer surface of the vessel A is covered The rolls D have not onlythe function 95 with any suitable absorbent substance 0, prefheretoforedescribed of holding the encirerably fabric of some kind, said absorbentcling belt or band E out to form the air-space material having flaps c,which bend over the F, but are also for the purpose of keeping the edgeof the vessel and fit down into the space covering 0 wet longer than itotherwise would a between saidvessel and the inner vessel. remain wet.This they do by reason of not I00 D are rolls of absorbent materialsuch,for parting with their moisture as quickly as the example, as coarsemuslin or other fabric covering 0, but hold it longer, and as they comein contact with the covering they keep it wet, and they also keep theroof-covering wet.

The circulation of air through the space F between the outer belt orband and vessel assists materially in the evaporation and in the generalresult.

In order to obtain access to the vessel, the hinged or swinging sides gof the roof are turned backwardly, thereby opening the top, or if wateralone is desired from the inner vessel this may be drawn off by a siphonor any other suitable means.

Having thus described my invention, whatI claim as new, and desire tosecure by Letters Patent, is-

1. A cooler consisting of an outer vessel for containing water, an innervessel for containing the material to be kept cool and sufficientlysmaller than the outer vessel to leave a water-space around it, and acovering of fabric or other absorbent material about the exterior of theouter vessel and having extension-flaps turning over its edges into thewater-space between the two vessels, substantially as described.

2. A cooler consisting of the outer vessel for containing water, theinner vessel for containing the material to be cooled andsuiticientlysmaller than the outer vessel to leave a surroundingwater-space, a covering for the outer vessel of fabric or otherabsorbent material, having extension-flaps passing over the edge of theouter vessel into the water-space, and the rolls of fabric or otherabsorbent material passing around the outer vessel and in contact withits covering, said rolls having extension-flaps passing down into thewaterspace, substantially as described.

3. A cooler consisting of the outer vessel for containing water, aninner vessel for containing the material to be cooled and sulficientlysmaller than the outer vessel to leave a surrounding water-space,acovering for the outer vessel of fabric or other absorbent material,having flaps extending down into the Water-space, rolls of fabric orother absorbent material passing around the outer vessel and in contactwith its covering, said rolls having flaps extending down into thewater-space, and an outer belt or band covering the rolls and outervessel and forming a space for air between itself and the covering ofsaid vessel, substantially as described.

4. In a cooler, the combination of the outer vessel for containingwater, the inner vessel for containing the material to be cooled andsufliciently smaller to leave a water-space, a covering for said outervessel of fabric or other absorbent material and having flaps extendingdown into the Water-space, a roof for said outer vessel having swingingsides, and a covering of fabric or other absorbent material for saidsides and having flaps passing down into the water-space, substantiallyas described.

5. A cooler consisting of the outer vessel, the inner vessel, leaving aspace between for the water, the absorbent or fabric covering 0 for theouter vessel having extensionflaps passing down into the water-space,the roof for the outer vessel having swinging sides, the absorbent orfabric covering for said swinging sides, having extension flaps passingdown into the Water-space, and the rolls of fabric or other absorbentmaterial passing around the outer vessel and roof and in contact withtheir coverings and having flaps extending down into the water-space,substantially as described.

6. A cooler consisting of the outer vessel, the inner vessel, leaving awater-space between them, the absorbent or fabric covering for the outervessel, having flaps extending down into the water-space, the roof forthe outer vessel having the swinging sides, the absorbent or fabriccovering for said sides, having flaps extending down into thewaterspaoe, the rolls of fabric or other absorbent material passingaround the outer vessel and the roof and in contact with their coveringsand having flaps extending down into the water space, and the outer beltor band around the outer vessel and rolls, forming the air-space F,substantially as described.

In witness whereof I have hereunto set my hand.

ALBERT MCDOWVELL.

Witnesses:

C. B. FAUST, E. E. CALHOUN.

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